LFB185G53CGZE309

Overview

The LFB185G53CGZE309 is a surface-mount band-pass filter manufactured by Murata Electronics. It operates with a center frequency of 5.425 GHz and features a bandwidth of 1.5 GHz. The component has an insertion loss maximum of 1.2 dB and maintains a standard impedance of 50 ohms. Its physical dimensions are 1.6 mm in length, 0.8 mm in width, and 0.65 mm in height, corresponding to the 0603 (1608 metric) package. The device is RoHS3 compliant and classified under EAR99.

Feature Summary

• Provides RF signal filtering within the specified microwave frequency range
• Designed for direct surface-mount integration onto printed circuit boards
• Constructed for reliable operation in high-frequency electronic circuits

Applications

• Wireless communication systems requiring specific frequency selection
• RF front-end modules in mobile devices
• Microwave circuitry for data transmission equipment

Procurement Notes

Verify current lifecycle status as sources indicate scheduled obsolescence. Confirm exact electrical tolerances against the official datasheet before design finalization. Ensure compatibility with existing supply chains due to potential discontinuation risks. Validate RoHS3 compliance requirements for target markets.

Selection Notes

Select this component for applications demanding a 5.425 GHz center frequency with a 1.5 GHz bandwidth. The 0603 package suits space-constrained designs. Verify that the 1.2 dB insertion loss meets system budget constraints. Ensure the 50-ohm impedance matches the surrounding RF trace network.

Part Context

This part belongs to the LFB series of RF filters from Murata Electronics. These components are engineered for compact form factors suitable for modern electronics. The series supports various frequency bands for diverse wireless standards. This specific model targets the 5.425 GHz band commonly used in specialized communication protocols.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Due to the reported end-of-life status, alternative sourcing or redesign may be necessary. Consult manufacturer resources for potential cross-references.